CVE-2021-22565: Google Exposure Notification Verification Server

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An attacker could prematurely expire a verification code, making it unusable by the patient, making the patient unable to upload their TEKs to generate exposure notifications. We recommend upgrading the Exposure Notification server to V1.1.2 or greater.

Affected products

• Google Exposure Notification Verification Server: before 1.1.2 (fixed in 1.1.2)

Published 2021-12-09. Last modified 2026-06-17.